37500m^3乙烯运输船C型罐的层压木受力分析  

Force Analysis of Presswood in a 37500m^3 LEGc with Type C Tanks

作　　者：周清华[1] 胡可一[1] 陈兵[1] ZHOU Qinghua;HU Keyi;CHEN Bing(Jiangnan Shipyard（Group）Co.,Ltd.,Shanghai 201913,China)

机构地区：[1]江南造船(集团)有限责任公司,上海201913

出　　处：《中国造船》2018年第2期140-148,共9页Shipbuilding of China

基　　金：工业和信息化部高技术船舶科研项目(工信部联装[2013]412号)

摘　　要：在设置有Type C双耳型液罐的液化气体运输船的研制中,液货舱支撑系统的设计和建造是一项关键技术。基于37500m3乙烯运输船层压木裂纹的监测数据,通过数值计算分析层压木本体在航行和下水两种状态下产生裂纹的原因及其影响。采用三维势流理论计算舱段模型在等效设计波载荷作用下的鞍座应力和层压木受力,并提出了一种适用于载船浮箱下水计算的混合模型分析方法。计算结果可为该支撑系统的优化设计提供技术支撑。Design and construction of the support system for cargo tanks are key technologies for the development of liquefied gas carriers with type C of bi-cylindrical tanks. Based on monitored fracture status of the presswood in a 37500 m^3 liquefied ethylene carrier, the cause and effect of presswood＇s fracture are analyzed through numerical calculation. The three-dimensional potential flow theory is applied to analyze stress in the saddle and force on the presswood. A hybrid model is proposed for the calculation of launching a ship with the pontoon. The results can provide technical support for optimal design of cargo tank support system.

关 键 词：船舶、舰船工程 乙烯运输船 层压木裂纹 C型罐 波浪载荷 载船浮箱下水 

分 类 号：U674.133.3[交通运输工程—船舶及航道工程]